PWM Slope

Related to the development libraries, released by Curt Binder

Posts: 144
Joined: Tue Aug 14, 2012 1:11 pm
PostPosted: Thu May 01, 2014 8:24 pm
I am running LDD Drivers. everything is working awesome, but I have one complaint.

it isn't smooth transitions. I can see it step up in brightness and step down in brightness.
Is there a way to smooth this out?

I currently have them go from 0% up to 60% for the blue channels.
0-40 for colors
0-30 for whites.

60min durration.
Adam
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Posts: 52
Joined: Thu May 23, 2013 2:19 pm
PostPosted: Fri May 02, 2014 5:01 am
Man I hope there's a fix because I was liking the sound of those little drivers.
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Posts: 1833
Joined: Sun Apr 21, 2013 6:25 am
Location: Davie, FL
PostPosted: Fri May 02, 2014 5:43 am
That's what I'm leaning towards using too.

I have the LDD and the Mean Well ELN-60-48D dimmable driver and I tried the ELN's and wasn't happy with their performance. Besides they are not good with fst transitions for lighting effects.

I haven't tried the LDD drivers yet.

Posts: 234
Joined: Tue Nov 05, 2013 8:40 am
Location: Houston TX
PostPosted: Fri May 02, 2014 7:07 am
What do you not like about the ELN performance? I am not to worried about introducing storm affects and I know they aren't good for rapid on/off's or changes in intensity. Is there any other reason you do not like them or is that it?

They seem to work great for me, except for the fact that they turn off at <11%. Wish they would dim to 0
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Posts: 144
Joined: Tue Aug 14, 2012 1:11 pm
PostPosted: Fri May 02, 2014 8:12 am
I had the ELN60-48P drivers. the lack of good control sucked. have to have certain amount of leds per string in order for them to work properly. to many restrictions.

LDD are just bad ass. on one ldd I have 2 leds, works with out any problems.


I have LDD drivers for sale. Search my thread.
Adam
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Posts: 12275
Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Fri May 02, 2014 9:05 am
There is another user that is working on implementing this for our next libraries :)
viewtopic.php?p=38708#p38708
Roberto.

Posts: 263
Joined: Wed Jan 01, 2014 7:26 am
PostPosted: Sat May 03, 2014 12:21 am
Yep. Among other things I am overloading these function calls so you can pass in integers instead of bytes which will allow for more steps of dimming. I have LDDs also and want to squeeze out 4096 levels instead of 100. 8)

Posts: 263
Joined: Wed Jan 01, 2014 7:26 am
PostPosted: Tue May 13, 2014 4:19 am
Ademster, what ports are you using to send pwm signals to the LDDs? Are you using the ports on the relay box or one of the ATO ports or so you have a dimming expansion?

Posts: 144
Joined: Tue Aug 14, 2012 1:11 pm
PostPosted: Tue May 13, 2014 8:14 pm
Expansion
Adam
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Posts: 263
Joined: Wed Jan 01, 2014 7:26 am
PostPosted: Wed May 14, 2014 3:06 am
Ademster wrote:Expansion


Good. Should work fine, I think.

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